Seal Facts
Amazingly the first ancestors of seals entered the oceans approximately 28 to 30 million years ago, making the species quite old. But that’s not the only fascinating thing there is to know about seals. An average harbor seal can grow to between 4 to 5 feet in length and weigh between 220 and 250 pounds.
So they can make quite an impact on a human if they were to defend themselves.